GNU bug report logs - #70365
29.2; Unable to remove suffixes such as Emacs-Lisp/l or C++//l from mode-name variable

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Animesh Sahu <animeshz916 <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 29.2; Unable to remove suffixes such as Emacs-Lisp/l or C++//l from
 mode-name variable
Date: Sat, 13 Apr 2024 12:56:20 +0530

[Message part 1 (text/plain, inline)]

--text follows this line--

I was trying to set up emacs modeline, the major modes however under the
variable name "mode-name" seems to have a suffix injected, and thus it
renders either C++//l instead of C++ and Emacs-Lisp/l instead of
Emacs-Lisp, I would like it to be simply the name of major mode without
extra details. And I don't seem to find any way of doing that anywhere on
the internet.

Closest I could find something is here:
https://www.reddit.com/r/emacs/comments/8v8de4/change_modename_for_major_mode/
it suggests doing something like (defalias 'c-update-modeline #'ignore),
but this doesn't seem right way to do it, since its basically doing only
for C or C++ language, same has to be done for java, ts, many more. Also
Emacs-Lisp/l doesn't have similar function that can be suppressed with
'ignore either, so I don't see a concrete way of doing it.

Any help would be appreciated, thanks!


In GNU Emacs 29.2 (build 1, x86_64-pc-linux-gnu, X toolkit, cairo
version 1.18.0, Xaw3d scroll bars)
Windowing system distributor 'The X.Org Foundation', version 11.0.12101011
System Description: Void Linux

Configured using:
 'configure
 --prefix=/nix/store/5hl68vr85cagmwaycqy652r2g2isjcyq-emacs-29.2
 --disable-build-details --with-modules --with-x-toolkit=lucid
 --with-xft --with-cairo --with-compress-install
 --with-toolkit-scroll-bars --with-native-compilation
 --without-imagemagick --without-small-ja-dic --with-tree-sitter
 --with-xinput2 --without-xwidgets'

Configured features:
CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG JSON
LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES NATIVE_COMP NOTIFY
INOTIFY PDUMPER PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF
TOOLKIT_SCROLL_BARS TREE_SITTER WEBP X11 XAW3D XDBE XIM XINPUT2 XPM
LUCID ZLIB

Important settings:
  value of $EMACSLOADPATH:
  value of $EMACSNATIVELOADPATH:
  value of $LC_COLLATE: C
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Org

Minor modes in effect:
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  telephone-line-mode: t
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  company-mode: t
  vertico-mode: t
  which-key-mode: t
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  undo-fu-session-mode: t
  global-evil-collection-unimpaired-mode: t
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  show-paren-mode: t
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  font-lock-mode: t
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  column-number-mode: t
  line-number-mode: t
  auto-fill-function: #[128 \304\300\301 #\207 [yas--auto-fill #[128
\301\302\300! "\207 [auto-fill-function apply default-value] 4

(fn &rest ARGS)] :around nil apply] 5 advice]
  global-visual-line-mode: t
  visual-line-mode: t
  transient-mark-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t

Load-path shadows:
/nix/store/1vlha7xa4myxc37y3463c2f481w3vw81-emacs-packages-deps/share/emacs/site-lisp/site-start
hides
/nix/store/5hl68vr85cagmwaycqy652r2g2isjcyq-emacs-29.2/share/emacs/site-lisp/site-start
/home/animesh/.emacs.d/elpaca/builds/transient/transient hides
/nix/store/5hl68vr85cagmwaycqy652r2g2isjcyq-emacs-29.2/share/emacs/29.2/lisp/transient

Features:
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nxml-util ox-latex ox-icalendar org-agenda ox-html table ox-ascii
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evil-collection-unimpaired evil-collection-tabulated-list
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calendar cal-loaddefs org-version org-compat org-macs format-spec
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elpaca-autoloads early-init gv rmc iso-transl tooltip cconv eldoc paren
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term/x-win x-win term/common-win x-dnd tool-bar dnd fontset image
regexp-opt fringe tabulated-list replace newcomment text-mode lisp-mode
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timer select scroll-bar mouse jit-lock font-lock syntax font-core
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indonesian philippine cham georgian utf-8-lang misc-lang vietnamese
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Memory information:
((conses 16 967497 256396)
 (symbols 48 49654 3)
 (strings 32 312726 26972)
 (string-bytes 1 9196016)
 (vectors 16 93110)
 (vector-slots 8 2293913 442255)
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 (intervals 56 4205 1976)
 (buffers 984 26))

[Message part 2 (text/html, inline)]

Message #8 received at 70365 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Animesh Sahu <animeshz916 <at> gmail.com>
Cc: 70365 <at> debbugs.gnu.org
Subject: Re: bug#70365: 29.2;
 Unable to remove suffixes such as Emacs-Lisp/l or C++//l from
 mode-name variable
Date: Sat, 13 Apr 2024 12:42:10 +0300

tags 70365 notabug
thanks

> From: Animesh Sahu <animeshz916 <at> gmail.com>
> Date: Sat, 13 Apr 2024 12:56:20 +0530
> 
> I was trying to set up emacs modeline, the major modes however under the variable name "mode-name"
> seems to have a suffix injected, and thus it renders either C++//l instead of C++ and Emacs-Lisp/l instead of
> Emacs-Lisp, I would like it to be simply the name of major mode without extra details. And I don't seem to find
> any way of doing that anywhere on the internet.

Can't you simply overwrite the value of mode-name in your mode hook?

Or modify the value of mode-line-modes to use some other variable
instead of mode-name, and then set the value of that other variable as
you see fit.

Message #13 received at 70365 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Animesh Sahu <animeshz916 <at> gmail.com>
Cc: 70365 <at> debbugs.gnu.org
Subject: Re: bug#70365: 29.2; Unable to remove suffixes such as Emacs-Lisp/l
 or C++//l from mode-name variable
Date: Sat, 13 Apr 2024 15:00:39 +0300

[Please use Reply All to reply, to keep the bug tracker CC'ed.]

> From: Animesh Sahu <animeshz916 <at> gmail.com>
> Date: Sat, 13 Apr 2024 16:18:20 +0530
> 
> I would not like this to be a per-mode fix for every language, I already linked closest I could get to this issue, in
> my previous mail:
> 
> > Closest I could find something is here:
> https://www.reddit.com/r/emacs/comments/8v8de4/change_modename_for_major_mode/ it suggests doing
> something like (defalias 'c-update-modeline #'ignore), but this doesn't seem right way to do it, since its
> basically doing only for C or C++ language, same has to be done for java, ts, many more. Also Emacs-Lisp/l
> doesn't have similar function that can be suppressed with 'ignore either, so I don't see a concrete way of
> doing it.

You should be able to do this globally in a
after-change-major-mode-hook, I think.  Although I don't think I
understand how you can do that regardless of the mode, since you
cannot know in advance what will a mode possibly append to mode-name
-- it could be something you want to leave alone in some modes.  So a
mode-specific setting sounds like the best idea to me, if you ask me.

There's also the other possibility I mentioned: to modify
mode-line-modes so as to use some other variable for showing the mode
name.  You can then control the value of that variable.  This is not a
mode specific solution.

> I would like to have these variables populated by their own modes. Although I don't find a generic way to
> disable that in all the languages / major modes. 

I'm not sure what is it that you expect us to do here.  We are not
going to change how these mode names are displayed by default, so
whatever you want to do it will have to be in your own local
customizations.  I've pointed out several possible ways of performing
such customizations.  If this is not enough, or you need more
assistance in accomplishing this, I suggest to post a question on
help-gnu-emacs <at> gnu.org, where people could help you implement this.

Message #18 received at 70365-done <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Animesh Sahu <animeshz916 <at> gmail.com>
Cc: 70365-done <at> debbugs.gnu.org
Subject: Re: bug#70365: 29.2; Unable to remove suffixes such as Emacs-Lisp/l
 or C++//l from mode-name variable
Date: Sat, 13 Apr 2024 17:30:55 +0300

> From: Animesh Sahu <animeshz916 <at> gmail.com>
> Date: Sat, 13 Apr 2024 18:27:00 +0530
> 
> Got it, thanks for the help :)

Thanks, so I'm closing this bug.

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